scholarly journals From the economist’s point of view—a review of the “The German energy transition: Design, implementation, cost and lessons” by Thomas Unnerstall

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Gerhard Fuchs
Keyword(s):  
Energy Transition ◽  
Point Of View ◽  
Implementation Cost

Review Essay

2020 ◽  
Vol 38 (4) ◽  
pp. 91-96
Author(s):  
Stephen Milder
Keyword(s):  
Interest Groups ◽  
Review Essay ◽  
Energy Transition ◽  
Implementation Cost ◽  
Energy Politics

Wolfgang Gründinger, Drivers of Energy Transition: How Interest Groups Influenced Energy Politics in Germany (Wiesbaden: Springer vs, 2017).Thomas Unnerstall, The German Energy Transition: Design, Implementation, Cost and Lessons (Berlin: Springer-Verlag, 2017).

MORPHOLOGICAL AND OPTICAL STUDIES OF PZN-4.5PT NANOPARTICLES THIN FILMS ON NANOSTRUCTURED SILICON SUBSTRATE

2021 ◽  
Vol 3 (1) ◽  
pp. CA2105-1-CA2105-4
Author(s):  
C. Y. Fall Ndeye ◽  
◽  
M. Touré ◽  
R. Ndioukane ◽  
D. Kobor ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Transition ◽  
Global Scale ◽  
Point Of View ◽  
Thin Layers ◽  
Morphological Properties ◽  
Light Power ◽  
Energy Needs ◽  
Major Player ◽  
Uv Visible

The development of renewable energies is today essential to be able to respond in a sustainably way to the growing energy needs on a global scale, as well as to reduce the greenhouse gas emissions responsible for global warming. Among these energies, photovoltaic technology, which converts light power of the sun (renewable source) into electric power, is a major player in the energy transition. However, there is now a need to develop efficient, competitive and less polluting photovoltaic technologies, allowing more energy to be produced at a lower cost. The Pb (Zn<sub>1/3</sub> Nb<sub>2/3</sub>) O<sub>3</sub> (PZN) relaxor and its solid solutions with ferroelectric PbTiO<sub>3</sub> (PT) are of considerable interest both from the applications point of view and from the scientific point of view. In the past, numerous attempts have been made to prepare and study the properties of these materials in the form of thin layers for photovoltaic applications. However, due to the difficulties in preparing pure phase films with a high PZN content, there is very little knowledge of the properties of these materials. The objective of this work is to prepare PZN-4.5PT nanoparticle thin films, to study in detail their morphological and optical properties. The studies were carried out in three main directions: preparation of thin layers (PZN-PT) by deposit of spin coating, and characterize for optical and morphological properties (SEM). UV-visible measurements allowed us to have reflectance of less than 30% after deposit a thin layer PZN-4.5PT doped 1% Mn and undoped for a 70 at 80% absorption in UV-Visible-NIR.

scholarly journals On-site solar powered refueling stations for green hydrogen production and distribution: performances and costs

2022 ◽  
Vol 334 ◽  
pp. 01005
Author(s):  
Simona Di Micco ◽  
Mariagiovanna Minutillo ◽  
Alessandra Perna ◽  
Elio Jannelli
Keyword(s):  
Hydrogen Production ◽  
Economic Analysis ◽  
Essential Element ◽  
Energy Transition ◽  
Economic Indicator ◽  
System Size ◽  
Point Of View ◽  
Environmental Benefits ◽  
Innovative Technology ◽  
Battery System

Today, the hydrogen is considered an essential element in speeding up the energy transition and generate important environmental benefits. Not all hydrogen is the same, though. The “green hydrogen”, which is produced using renewable energy and electrolysis to split water, is really and completely sustainable for stationary and mobile applications. This paper is focused on the techno-economic analysis of an on-site hydrogen refueling station (HRS) in which the green hydrogen production is assured by a PV plant that supplies electricity to an alkaline electrolyzer. The hydrogen is stored in low pressure tanks (200 bar) and then is compressed at 900 bar for refueling FCHVs by using the innovative technology of the ionic compressor. From technical point of view, the components of the HRS have been sized for assuring a maximum capacity of 450 kg/day. In particular, the PV plant (installed in the south of Italy) has a size of 8MWp and supplies an alkaline electrolyzer of 2.1 MW. A Li-ion battery system (size 3.5 MWh) is used to store the electricity surplus and the grid-connection of the PV plant allows to export the electricity excess that cannot be stored in the battery system. The economic analysis has been performed by estimating the levelized cost of hydrogen (LCOH) that is an important economic indicator based on the evaluation of investment, operational & maintenance and replacement costs. Results highlighted that the proposed on-site configuration in which the green hydrogen production is assured, is characterized by a LCOH of 10.71 €/kg.

scholarly journals Comparative Analysis of Adjustable Robust Optimization Alternatives for the Participation of Aggregated Residential Prosumers in Electricity Markets

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1019 ◽  
Author(s):  
Carlos Correa-Florez ◽  
Andrea Michiorri ◽  
Georges Kariniotakis
Keyword(s):  
Comparative Analysis ◽  
Robust Optimization ◽  
Electricity Markets ◽  
Optimization Model ◽  
Energy Transition ◽  
Point Of View ◽  
Alternative Formulation ◽  
Energy Prices ◽  
Water Heaters ◽  
Adjustable Robust Optimization

Active participation of end users in energy markets is identified as one of the major challenges in the energy transition context. One option to bridge the gap between customers and the market is aggregators of smart homes or buildings. This paper presents an optimization model from the standpoint of an aggregator of residential prosumers who have PV panels, electric water heaters, and batteries installed at home level. This aggregator participates in the day-ahead energy market to minimize operation costs by controlling the settings of flexible devices. Given that energy prices, PV production, and demand have uncertain behavior, appropriate models should be used to include these effects. In the present work, Adjustable Robust Optimization (ARO) is used to include uncertainty in the optimization model, and a comparative study of modifications to this formulation is carried out to determine its potential and limitations. The comparative analysis is performed from the point of view of average cost and risk, after performing Monte Carlo simulation. Simulations show the advantages of using an ARO framework when compared to deterministic approaches and also allow us to conclude about the advantages of using the proposed alternative formulation to find more attractive solutions for an aggregator.

Philosophy of energy and energy transition in the age of the petro-Anthropocene†

2020 ◽  
Vol 13 (2) ◽  
pp. 100-113
Author(s):  
Jean-Yves Heurtebise
Keyword(s):  
Fossil Fuels ◽  
Energy Transition ◽  
Negative Energy ◽  
Economic Problem ◽  
Point Of View ◽  
Middle Income ◽  
Modern Times ◽  
Analytical Point ◽  
Different Dimensions ◽  
Energy Tax

Abstract The purpose of this article is to present the multidimensional issue of an ‘energy transition’ from a philosophical, that is, conceptual and analytical, point of view. The argument of this article is that ‘energy transition’ is not simply a technological and economic problem but also an epistemological, cultural, anthropological and even metaphysical one. Energy transition does not only consist of changing the kind of energy that is produced and consumed to power our modern middle-income societies, from fossil fuels to renewable energies. Energy transition asks us to understand what is implied in cultural and social terms by such a shift from ‘grey’ to ‘green’ sources of energy that does not only entail qualitative transformation but also could imply quantitative curtailment. What will be the consequences of our necessary departure from ‘petromodernity’, that is, from the mode of living that came with fossil fuels in modern times that shape our current age of the Anthropocene? To address this question, different dimensions of the philosophy of energy will be studied: epistemological, phenomenological, anthropological, critical and metaphysical. In conclusion, we will, first, propose the notion of a ‘negative energy tax’ to address the problems of ‘energy injustice’. We will then refer to Bataille to provide an ontology of energy that can help to redefine our assumptions and expectations regarding energy spending.

Postfordistische Energiepolitiken?

2012 ◽  
Vol 56 (1-2) ◽  
Author(s):  
Thomas Schmitt
Keyword(s):  
North Africa ◽  
Power Plants ◽  
Large Scale ◽  
Energy Transition ◽  
Point Of View ◽  
Institutional Conditions ◽  
The North ◽  
Solar Power Plants ◽  
Decentralized Energy ◽  
The Arab Spring

Postfordist energy policies? Desertec as a scenario towards a restructuration of energy supply within the EUMENA-region. In 2009 the Desertec Industrial Initiative (DII) was founded by several, predominant German enterprises including the NGO “Desertec Foundation”. The objective of DII is to organize the conditions for the realisation of the Desertec idea, which aims to supply, in a large scale manner, Europe with electricity produced in solar power plants in North Africa and the Arabic peninsula. The Desertec concept is playing with and combining different myths as the desert, the large-scale, ”megatechnic” vision and the reconciliation of the North and the South. Critics of Desertec argue that the project has the intention to impede an energy transition towards decentralized energy structures in Europe and that Desertec has a neo-colonial attitude. Both the Arab spring and the disaster of Fukushima have changed the discoursive landscape and the institutional conditions around the realisation of Desertec. The paper raises and responds to the question, whether Desertec can be seen as a Fordist or a Postfordist project according to the categories of the French regulation school. Additionally, the Desertec concept is reflected from a cultural geography’s point of view.

scholarly journals Learning Processes and Agency in the Decarbonization Context: A Systematic Review through a Cultural Psychology Point of View

2021 ◽  
Vol 13 (18) ◽  
pp. 10425
Author(s):  
Nicola Stocco ◽  
Francesco Gardona ◽  
Fulvio Biddau ◽  
Paolo Francesco Cottone
Keyword(s):  
Systematic Review ◽  
Cultural Psychology ◽  
Energy Transition ◽  
Learning Processes ◽  
Point Of View ◽  
Political Implications ◽  
Dimensions Of Learning ◽  
Cultural Determinants ◽  
Psychological Point ◽  
Systematic Understanding

In the scientific literature on energy transition toward decarbonization, the learning process is often described as a preferred way to achieve change. However, despite a large number of theoretical and empirical endeavors, a systematic understanding of the process is still lacking due to the diversity of disciplines and approaches and to the multi-layered nature of the phenomenon. The aim of this systematic review is to highlight the dimensions of learning processes from a cultural psychological point of view in order to understand and assess different planes of the relation between humans and technology. We thus explore the literature following the PRISMA protocol. Through a narrative synthesis, we critically assess the theoretical and methodological advancement, the presence of cultural determinants, the value ascribed to agency, and the depoliticization risk. We found that: theories and methodologies still lack systematicity and concordance in their application; learning processes are studied with little focus on the context and are mostly treated as facilitators; agency mostly lacks a psychosocial focus, despite the exploration of multi-level problems; and the depoliticization of learning is a matter of fact. Nevertheless, positive examples are present, although they are few. Epistemological and political implications are discussed, and a psychosocial conception of agency is proposed, together with a reflective stance for researchers.

scholarly journals EPS-SIF Energy Summer School 2019: Concluding remarks

2020 ◽  
Vol 246 ◽  
pp. 00022
Author(s):  
F. Wagner
Keyword(s):  
Summer School ◽  
Energy Transition ◽  
Point Of View ◽  
Future Trends ◽  
Present Stage ◽  
German Development ◽  
Global Issues ◽  
Energy Issue ◽  
Obvious Reason ◽  
System Point

This paper is based on the last talk of the summer school. The intention of the talk was not to repeat any highlights of the school, rather to place the energy issue in a wider frame of global issues like global warming and the global responses to this threat. Therefore, I tried to compile —where possible— new data which inform the audience on the present stage of the energy transition toward carbon-free technologies and some expected future trends. The largest hopes for a successful transformation are connected to renewable energy forms. This field is discussed here mostly from a system point of view whereas I resort heavily to examples from Germany. The most obvious reason is that I am familiar with the German development and have access to the most relevant data. On the other hand, the German experience is of importance for other highly industrialised economies and its development affects other countries because of its central location.

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